Results 31 to 40 of about 3,545,130 (223)

Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping

open access: yesEntropy, 2020
In this paper, we provide a systematic comparison of distribution matching (DM) and sphere shaping (SpSh) algorithms for short blocklength probabilistic amplitude shaping. For asymptotically large blocklengths, constant composition distribution matching (
Yunus Can Gültekin   +3 more
doaj   +1 more source

Data Augmentation for Speaker Identification under Stress Conditions to Combat Gender-Based Violence

open access: yesApplied Sciences, 2019
A Speaker Identification system for a personalized wearable device to combat gender-based violence is presented in this paper. Speaker recognition systems exhibit a decrease in performance when the user is under emotional or stress conditions, thus the ...
Esther Rituerto-González   +3 more
doaj   +1 more source

A Concept for Myocardial Current Density Estimation with Magnetoelectric Sensors

open access: yesCurrent Directions in Biomedical Engineering, 2023
In this paper we present a novel noninvasive approach to estimate current densities in the heart from magnetocardiography. The proposed algorithm uses nested optimization to model current densities in equally-sized voxels of myocardial tissue.
Engelhardt Erik   +6 more
doaj   +1 more source

Statistical Analysis and Machine Learning Prediction of Fog-Caused Low-Visibility Events at A-8 Motor-Road in Spain

open access: yesAtmosphere, 2021
This work presents a full statistical analysis and accurate prediction of low-visibility events due to fog, at the A-8 motor-road in Mondoñedo (Galicia, Spain).
Sara Cornejo-Bueno   +7 more
doaj   +1 more source

Adaptive digital signal processing Java teaching tool [PDF]

open access: yes, 2001
This publication presents a JAVA program for teaching the rudiments of adaptive digital signal processing (DSP) algorithms and techniques. Adaptive DSP is on of the most important areas of signal processsing, and provides the core algorithmic means to ...
Harteneck, M., Stewart, R.W.
core   +1 more source

Robust GNSS Receivers by Array Signal Processing: Theory and Implementation

open access: yesProceedings of the IEEE, 2016
One of the main vulnerabilities of GNSS receivers is their exposure to intentional or unintentional jamming signals, which could even cause service unavailability.
C. Fernández-Prades   +2 more
semanticscholar   +1 more source

Quantitative Evaluation for Magnetoelectric Sensor Systems in Biomagnetic Diagnostics

open access: yesSensors, 2022
Dedicated research is currently being conducted on novel thin film magnetoelectric (ME) sensor concepts for medical applications. These concepts enable a contactless magnetic signal acquisition in the presence of large interference fields such as the ...
Eric Elzenheimer   +9 more
doaj   +1 more source

Automatic Localization of an Ultrasound Probe with the Help of Magnetic Sensors

open access: yesCurrent Directions in Biomedical Engineering, 2022
Ultrasound measurements are a widely used instrument in clinical practice. For later traceability of the images, the position (and orientation) of the ultrasound probe must be recorded during the measurement. Until now this has to be done manually by the
Bald Christin   +2 more
doaj   +1 more source

MV-GPRNet: Multi-View Subsurface Defect Detection Network for Airport Runway Inspection Based on GPR

open access: yesRemote Sensing, 2022
The detection and restoration of subsurface defects are essential for ensuring the structural reliability of airport runways. Subsurface inspections can be performed with the aid of a robot equipped with a Ground Penetrating Radar (GPR).
Nansha Li   +5 more
doaj   +1 more source

Orthogonality is superiority in piecewise-polynomial signal segmentation and denoising

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
Segmentation and denoising of signals often rely on the polynomial model which assumes that every segment is a polynomial of a certain degree and that the segments are modeled independently of each other.
Michaela Novosadová   +2 more
doaj   +1 more source

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